IoT Energy Meter nodemcu

 

IoT Energy Meter 

Components:

• ESP8266

• PZEM-004T Energy Meter Module

Circuit:

• Connect the PZEM-004T to the ESP8266 as follows:

  • PZEM-004T:

    • TX → RX of ESP8266

    • RX → TX of ESP8266

    • VCC → 5V

    • GND → GND

Code:

cpp
#include <ESP8266WiFi.h>
#include <SoftwareSerial.h>
#include <PZEM004Tv30.h>

const char *ssid = "your-SSID";  // Replace with your WiFi SSID
const char *password = "your-PASSWORD";  // Replace with your WiFi Password

WiFiServer server(80);
PZEM004Tv30 pzem(Serial);  // Software serial or hardware serial
SoftwareSerial swSerial(D6, D7);  // RX, TX for PZEM-004T

void setup() {
  Serial.begin(115200);
  swSerial.begin(9600);
  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi!");
  server.begin();
}

void loop() {
  WiFiClient client = server.available();
  if (client) {
    String response = "Energy Consumption Data:<br>";
    response += "Voltage: " + String(pzem.readVoltage(), 2) + " V<br>";
    response += "Current: " + String(pzem.readCurrent(), 2) + " A<br>";
    response += "Power: " + String(pzem.readPower(), 2) + " W<br>";
    response += "Energy: " + String(pzem.readEnergy(), 2) + " Wh<br>";
    client.print(response);
    delay(1000);
  }
}